//获取后台菜单树
export const getTree=(data,id)=>{
  var tree=new Array();
	var i=0;
	data.forEach(function(item,index){
		if(item.parentid==id){
            item.children = getTree(data,item.id);
            tree[i] = item;
			i++;
        }
	});
    return tree;
}
//获取所有孩子
export const getChild=(data,id)=>{
  var child=new Array();
	data.forEach(function(item){
		if(item.parentid==id){
      child.push(item);
      child.push(...getChild(data,item.id));
      }
	});
  return child;
}
//生成菜单路由对象
export const menuRoute=(data)=>{
	let routes={};
	if(!data){
		let m=sessionStorage.getItem('menu');
		if(m) data=eval(m);
	}
	if(data){
		routes={
			path: '/',
			component:resolve => require(['../views/home.vue'], resolve),
			children:[{name:'index',meta:{id:0},path:'',component:resolve => require(['../views/index.vue'], resolve)}]
			};
		data.forEach(function(item,index){
			if(item.route!=''){
				routes.children.push({
					meta:{id:item.id,pid:item.parentid,name:item.name},
					name:item.view,
					path:item.route,
					component:resolve => require(['../views/'+item.view+'.vue'], resolve)
				});
			}
		});
	}
	routes.children.push({path:'*',redirect:'/'});
	return routes;
}

//仿php时间戳格式化
export const date = (timestamp,format) => {
    if(timestamp<=0) return '--';
    var a, jsdate = ((timestamp) ? new Date(timestamp * 1000) : new Date());
    var pad = function (n, c) {
        if ((n = n + "").length < c) {
            return new Array(++c - n.length).join("0") + n;
        } else {
            return n;
        }
    };
    var txt_weekdays = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
    var txt_ordin = { 1: "st", 2: "nd", 3: "rd", 21: "st", 22: "nd", 23: "rd", 31: "st" };
    var txt_months = ["", "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
    var f = {
        // Day
        d: function () { return pad(f.j(), 2) },
        D: function () { return f.l().substr(0, 3) },
        j: function () { return jsdate.getDate() },
        l: function () { return txt_weekdays[f.w()] },
        N: function () { return f.w() + 1 },
        S: function () { return txt_ordin[f.j()] ? txt_ordin[f.j()] : 'th' },
        w: function () { return jsdate.getDay() },
        z: function () { return (jsdate - new Date(jsdate.getFullYear() + "/1/1")) / 864e5 >> 0 },

        // Week
        W: function () {
            var a = f.z(), b = 364 + f.L() - a;
            var nd2, nd = (new Date(jsdate.getFullYear() + "/1/1").getDay() || 7) - 1;
            if (b <= 2 && ((jsdate.getDay() || 7) - 1) <= 2 - b) {
                return 1;
            } else {
                if (a <= 2 && nd >= 4 && a >= (6 - nd)) {
                    nd2 = new Date(jsdate.getFullYear() - 1 + "/12/31");
                    return date("W", Math.round(nd2.getTime() / 1000));
                } else {
                    return (1 + (nd <= 3 ? ((a + nd) / 7) : (a - (7 - nd)) / 7) >> 0);
                }
            }
        },

        // Month
        F: function () { return txt_months[f.n()] },
        m: function () { return pad(f.n(), 2) },
        M: function () { return f.F().substr(0, 3) },
        n: function () { return jsdate.getMonth() + 1 },
        t: function () {
            var n;
            if ((n = jsdate.getMonth() + 1) == 2) {
                return 28 + f.L();
            } else {
                if (n & 1 && n < 8 || !(n & 1) && n > 7) {
                    return 31;
                } else {
                    return 30;
                }
            }
        },

        // Year
        L: function () { var y = f.Y(); return (!(y & 3) && (y % 1e2 || !(y % 4e2))) ? 1 : 0 },
        Y: function () { return jsdate.getFullYear() },
        y: function () { return (jsdate.getFullYear() + "").slice(2) },

        // Time
        a: function () { return jsdate.getHours() > 11 ? "pm" : "am" },
        A: function () { return f.a().toUpperCase() },
        B: function () {
            // peter paul koch:
            var off = (jsdate.getTimezoneOffset() + 60) * 60;
            var theSeconds = (jsdate.getHours() * 3600) + (jsdate.getMinutes() * 60) + jsdate.getSeconds() + off;
            var beat = Math.floor(theSeconds / 86.4);
            if (beat > 1000) beat -= 1000;
            if (beat < 0) beat += 1000;
            if ((String(beat)).length == 1) beat = "00" + beat;
            if ((String(beat)).length == 2) beat = "0" + beat;
            return beat;
        },
        g: function () { return jsdate.getHours() % 12 || 12 },
        G: function () { return jsdate.getHours() },
        h: function () { return pad(f.g(), 2) },
        H: function () { return pad(jsdate.getHours(), 2) },
        i: function () { return pad(jsdate.getMinutes(), 2) },
        s: function () { return pad(jsdate.getSeconds(), 2) },
        // Timezone
        O: function () {
            var t = pad(Math.abs(jsdate.getTimezoneOffset() / 60 * 100), 4);
            if (jsdate.getTimezoneOffset() > 0) t = "-" + t; else t = "+" + t;
            return t;
        },
        P: function () { var O = f.O(); return (O.substr(0, 3) + ":" + O.substr(3, 2)) },
        // Full Date/Time
        c: function () { return f.Y() + "-" + f.m() + "-" + f.d() + "T" + f.h() + ":" + f.i() + ":" + f.s() + f.P() },
        U: function () { return Math.round(jsdate.getTime() / 1000) }
    };

    return format.replace(/[\\]?([a-zA-Z])/g, function (t, s) {
        var ret = '';
        if (t != s) { ret = s; }
        else if (f[s]) { ret = f[s](); }
        else { ret = s; }
        return ret;
    });
}

//检测手机号
export const checkMobile = (m) => {
    if (!m || !/^1[3-9][0-9]{9}$/.test(m)) {
        return false;
    } else return true;
}
//校验身份证号格式
export const checkIDCard = (idcode) => {
    if (!idcode || idcode.length != 18) return false;
    // 加权因子
    var weight_factor = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2];
    // 校验码
    var check_code = ['1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'];
    var code = idcode + "";
    var last = idcode[17];//最后一个
    var seventeen = code.substring(0, 17);
    // ISO 7064:1983.MOD 11-2
    // 判断最后一位校验码是否正确
    var arr = seventeen.split("");
    var len = arr.length;
    var num = 0;
    for (var i = 0; i < len; i++) {
        num = num + arr[i] * weight_factor[i];
    }
    // 获取余数
    var resisue = num % 11;
    var last_no = check_code[resisue];
    var idcard_patter = /^[1-9][0-9]{5}([1][9][0-9]{2}|[2][0][0|1][0-9])([0][1-9]|[1][0|1|2])([0][1-9]|[1|2][0-9]|[3][0|1])[0-9]{3}([0-9]|[X])$/;
    // 判断格式是否正确
    var format = idcard_patter.test(idcode);
    // 返回验证结果，校验码和格式同时正确才算是合法的身份证号码
    return last === last_no && format ? true : false;
}

export const fullScreen=(type)=>{
    if(type){
		var el = document.documentElement;
        var fs = el.requestFullScreen || el.webkitRequestFullScreen ||
                  el.mozRequestFullScreen || el.msRequestFullScreen;
	}else{
		var el = document;
        var fs = el.cancelFullScreen || el.webkitCancelFullScreen ||
                  el.mozCancelFullScreen || el.exitFullScreen;
	}
	if(typeof fs != "undefined" && fs) {
			fs.call(el);
		} else if(typeof window.ActiveXObject != "undefined") {
			var wscript = new ActiveXObject("WScript.Shell");
			if(wscript != null) {wscript.SendKeys("{F11}");}
		}
}

export const randomString=(len)=>{
　　len = len || 32;
　　var $chars = 'abcdefghijklmnopqrstuvwxyz0123456789';
　　var maxPos = $chars.length;
　　var str = '';
　　for (let i = 0; i < len; i++) {
　　　　str += $chars.charAt(Math.floor(Math.random() * (maxPos+1)));
　　}
　　return str
}
